Now the automatic plot of the refractive index should work

Author: mesonepigreco

Modules/AdvancedCalculations.py

@@ -307,7 +307,7 @@ def get_optical_spectrum(ensemble, w_array = None):
 """.format(i)
             raise ValueError(ERR)
 
-        data = ensemble.all_properties[i]['epsilon']
+        data = np.array(ensemble.all_properties[i]['epsilon'])
 
         if w_data is None:
             w_data = data[:,0]